Fast & Flat: Smash Burgers

Justo App

About this app

Fast & Flat — or as we're also known, Fast and Flat — is the place where smash burgers rule.
Medium-rare beef, melted cheddar, signature sauces, and fries that never fail. No fuss: just flavor, attitude, and a crash-free crash.

*What do you find in the app?
Our full menu: burgers, fries, empanadas, hot dogs, kids' menu, and desserts.
Flat Points: earn points with every purchase and redeem them for discounts.
Exclusive promotions for orders from the app.
Local pickup or delivery options through Uber Eats, PedidosYa, and Rappi.
Welcome discount with code MIPRIMERFLAT.

*Bump Favorites:
Patty Melt: potato bread, cheddar, and caramelized onions.
Dirty Flat: lettuce, cheddar, cucumbers, and Dirty sauce.
Fast N Fire: jalapeños, bacon, and hot sauce.
Flat Classic: lettuce, tomato, and original Fast & Flat sauce.
Empacheese: empanadas filled with buttery cheese.
Shaky Shaky: strawberry or cookies & cream milkshakes.

*Location:
Av. El Descanso 628, Maipú.
Order online or come experience the Fast & Flat experience.
Fast & Flat: break the blues, one smash at a time.